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2007
ACM

Modeling pointing at targets of arbitrary shapes

4 years 11 months ago
Modeling pointing at targets of arbitrary shapes
We investigate pointing at graphical targets of arbitrary shapes. We first describe a previously proposed probabilistic Fitts' law model [7] which, unlike previous models that only account for rectangular targets, has the potential to handle arbitrary shapes. Three methods of defining the centers of arbitrarily shaped targets for use within the model are developed. We compare these methods of defining target centers, and validate the model using a pointing experiment in which the targets take on various shapes. Results show that the model can accurately account for the varying target shapes. We discuss the implications of our results to interface design. Author Keywords Fitts' law, probabilistic model, arbitrary shapes, pointing. ACM Classification Keywords H.5.2. User Interfaces: Graphical user interfaces
Tovi Grossman, Nicholas Kong, Ravin Balakrishnan
Added 30 Nov 2009
Updated 30 Nov 2009
Type Conference
Year 2007
Where CHI
Authors Tovi Grossman, Nicholas Kong, Ravin Balakrishnan
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